dc.contributor.author |
Vadapalli, VRK
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dc.contributor.author |
Zvimba, JN
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dc.contributor.author |
Mathye, M
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dc.contributor.author |
Fischer, H
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dc.contributor.author |
Bologo, L
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dc.date.accessioned |
2016-02-23T09:33:52Z |
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dc.date.available |
2016-02-23T09:33:52Z |
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dc.date.issued |
2015-10 |
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dc.identifier.citation |
Vadapalli, VRK, Zvimba, JN, Mathye, M, Fischer, H and Bologo, L. 2015. Acid mine drainage neutralization in a pilot sequencing batch reactor using limestone from a paper and pulp industry. Environmental Technology, Vol. 36(19), pp. 2515-2523 |
en_US |
dc.identifier.issn |
0959-3330 |
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dc.identifier.uri |
http://www.tandfonline.com/doi/pdf/10.1080/09593330.2015.1036786
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dc.identifier.uri |
http://hdl.handle.net/10204/8431
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dc.description |
Copyright: 2015 Taylor & Francis. This is a post-print version. Due to copyright restrictions, the attached PDF file only contains the post-print version of the full text item. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Environmental Technology, Vol. 36(19), pp. 2515-2523 |
en_US |
dc.description.abstract |
This study investigated the implications of using two grades of limestone from a paper and pulp industry for neutralization of acid mine drainage (AMD) in a pilot sequencing batch reactor (SBR). In this regard, two grades of calcium carbonate were used to neutralize AMD in a SBR with a hydraulic retention time (including settling) of 100 min and a sludge retention time of 360 min, by simultaneously monitoring the Fe(II) removal kinetics and overall assessment of the AMD after treatment. The Fe(II) kinetics removal and overall AMD treatment were observed to be highly dependent on the limestone grade used, with Fe(II) completely removed to levels lower than 50 mg/L in cycle 1 after 30 min using high quality or pure paper and pulp limestone. On the contrary, the other grade limestone, namely waste limestone, could only achieve a similar Fe(II) removal efficiency after four cycles. It was also noticed that suspended solids concentration plays a significant role in Fe(II) removal kinetics. In this regard, using pure limestone from the paper and pulp industry will have advantages compared with waste limestone for AMD neutralization. It has significant process impacts for the SBR configuration as it allows one cycle treatment resulting in a significant reduction of the feed stock, with subsequent generation of less sludge during AMD neutralization. However, the use of waste calcium carbonate from the paper and pulp industry as a feed stock during AMD neutralization can achieve significant cost savings as it is cheaper than the pure limestone and can achieve the same removal efficiency after four cycles. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Taylor & Francis |
en_US |
dc.relation.ispartofseries |
Workflow;15600 |
|
dc.subject |
Fe(II) |
en_US |
dc.subject |
Acid mine drainage |
en_US |
dc.subject |
Limestone |
en_US |
dc.subject |
Sequencing batch reactor |
en_US |
dc.subject |
Sludge |
en_US |
dc.title |
Acid mine drainage neutralization in a pilot sequencing batch reactor using limestone from a paper and pulp industry |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Vadapalli, V., Zvimba, J., Mathye, M., Fischer, H., & Bologo, L. (2015). Acid mine drainage neutralization in a pilot sequencing batch reactor using limestone from a paper and pulp industry. http://hdl.handle.net/10204/8431 |
en_ZA |
dc.identifier.chicagocitation |
Vadapalli, VRK, JN Zvimba, M Mathye, H Fischer, and L Bologo "Acid mine drainage neutralization in a pilot sequencing batch reactor using limestone from a paper and pulp industry." (2015) http://hdl.handle.net/10204/8431 |
en_ZA |
dc.identifier.vancouvercitation |
Vadapalli V, Zvimba J, Mathye M, Fischer H, Bologo L. Acid mine drainage neutralization in a pilot sequencing batch reactor using limestone from a paper and pulp industry. 2015; http://hdl.handle.net/10204/8431. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Vadapalli, VRK
AU - Zvimba, JN
AU - Mathye, M
AU - Fischer, H
AU - Bologo, L
AB - This study investigated the implications of using two grades of limestone from a paper and pulp industry for neutralization of acid mine drainage (AMD) in a pilot sequencing batch reactor (SBR). In this regard, two grades of calcium carbonate were used to neutralize AMD in a SBR with a hydraulic retention time (including settling) of 100 min and a sludge retention time of 360 min, by simultaneously monitoring the Fe(II) removal kinetics and overall assessment of the AMD after treatment. The Fe(II) kinetics removal and overall AMD treatment were observed to be highly dependent on the limestone grade used, with Fe(II) completely removed to levels lower than 50 mg/L in cycle 1 after 30 min using high quality or pure paper and pulp limestone. On the contrary, the other grade limestone, namely waste limestone, could only achieve a similar Fe(II) removal efficiency after four cycles. It was also noticed that suspended solids concentration plays a significant role in Fe(II) removal kinetics. In this regard, using pure limestone from the paper and pulp industry will have advantages compared with waste limestone for AMD neutralization. It has significant process impacts for the SBR configuration as it allows one cycle treatment resulting in a significant reduction of the feed stock, with subsequent generation of less sludge during AMD neutralization. However, the use of waste calcium carbonate from the paper and pulp industry as a feed stock during AMD neutralization can achieve significant cost savings as it is cheaper than the pure limestone and can achieve the same removal efficiency after four cycles.
DA - 2015-10
DB - ResearchSpace
DP - CSIR
KW - Fe(II)
KW - Acid mine drainage
KW - Limestone
KW - Sequencing batch reactor
KW - Sludge
LK - https://researchspace.csir.co.za
PY - 2015
SM - 0959-3330
T1 - Acid mine drainage neutralization in a pilot sequencing batch reactor using limestone from a paper and pulp industry
TI - Acid mine drainage neutralization in a pilot sequencing batch reactor using limestone from a paper and pulp industry
UR - http://hdl.handle.net/10204/8431
ER -
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en_ZA |